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Finding the Fourth Proportional to 5,491.53, 7,574.22 and 3,577.77

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Solution

The fourth proportional to 5,491.53, 7,574.22 and 3,577.77 is: 4,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.53 : 7,574.22 = 3,577.77 : x
  2. Step 2: Convert to fraction form
    5,491.53/7,574.22 = 3,577.77/x
  3. Step 3: Cross multiply
    5,491.53x = 7,574.22 × 3,577.77
  4. Step 4: Simplify right side
    5,491.53x = 27,098,817.09
  5. Step 5: Solve for x
    x = 27,098,817.09/5,491.53
  6. Step 6: Final answer
    x = 4,934.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.